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  <title>The EventConfig class</title>

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 <h1 class="title">The EventConfig class</h1>
 
 <div class="partintro"><p class="verinfo">(PECL event &gt;= 1.2.6-beta)</p>

  <div class="section" id="eventconfig.intro">
   <h2 class="title">简介</h2>
   <p class="para">
    Represents configuration structure which could be used in construction of
    the
    <a href="class.eventbase.html" class="classname">EventBase</a>
    .
   </p>
  </div>

  <div class="section" id="eventconfig.synopsis">
   <h2 class="title">类摘要</h2>


   <div class="classsynopsis">
    <div class="ooclass">
     
    </div>

    <div class="classsynopsisinfo">
     <span class="ooclass">
      <span class="modifier">final</span>
      <strong class="classname">EventConfig</strong>
     </span>
     {</div>

    <div class="classsynopsisinfo classsynopsisinfo_comment">/* Constants */</div>
    <div class="fieldsynopsis">
     <span class="modifier">const</span>
     <span class="type">integer</span>
      <var class="fieldsynopsis_varname"><a href="class.eventconfig.html#eventconfig.constants.feature-et"><var class="varname">FEATURE_ET</var></a></var>
     <span class="initializer"> = 1</span>
    ;</div>

    <div class="fieldsynopsis">
     <span class="modifier">const</span>
     <span class="type">integer</span>
      <var class="fieldsynopsis_varname"><a href="class.eventconfig.html#eventconfig.constants.feature-o1"><var class="varname">FEATURE_O1</var></a></var>
     <span class="initializer"> = 2</span>
    ;</div>

    <div class="fieldsynopsis">
     <span class="modifier">const</span>
     <span class="type">integer</span>
      <var class="fieldsynopsis_varname"><a href="class.eventconfig.html#eventconfig.constants.feature-fds"><var class="varname">FEATURE_FDS</var></a></var>
     <span class="initializer"> = 4</span>
    ;</div>

    <div class="classsynopsisinfo classsynopsisinfo_comment">/* 方法 */</div>
    <div class="methodsynopsis dc-description">
   <span class="modifier">public</span>
   <span class="type">bool</span>
   <span class="methodname"><a href="eventconfig.avoidmethod.html" class="methodname">avoidMethod</a></span>
    ( <span class="methodparam">
    <span class="type">int</span>
     <code class="parameter">$method</code>
   </span>
   )</div>
<div class="methodsynopsis dc-description">
   <span class="modifier">public</span>
   <span class="methodname"><a href="eventconfig.construct.html" class="methodname">__construct</a></span>
    ( <span class="methodparam">void</span>
   )</div>
<div class="methodsynopsis dc-description">
   <span class="modifier">public</span>
   <span class="type">bool</span>
   <span class="methodname"><a href="eventconfig.requirefeatures.html" class="methodname">requireFeatures</a></span>
    ( <span class="methodparam">
    <span class="type">int</span>
     <code class="parameter">$feature</code>
   </span>
   )</div>
<div class="methodsynopsis dc-description">
   <span class="modifier">public</span>
   <span class="type">void</span>
   <span class="methodname"><a href="eventconfig.setmaxdispatchinterval.html" class="methodname">setMaxDispatchInterval</a></span>
    ( <span class="methodparam">
    <span class="type">int</span>
     <code class="parameter">$max_interval</code>
   </span>
   , <span class="methodparam">
    <span class="type">int</span>
     <code class="parameter">$max_callbacks</code>
   </span>
   , <span class="methodparam">
    <span class="type">int</span>
     <code class="parameter">$min_priority</code>
   </span>
   )</div>

   }</div>

  </div>

  <div class="section" id="eventconfig.constants">
   <h2 class="title">预定义常量</h2>
   <dl>

    
     <dt id="eventconfig.constants.feature-et">
      <strong><code>EventConfig::FEATURE_ET</code></strong>
     </dt>

     <dd>

      <p class="para">
       Requires a backend method that supports edge-triggered I/O.
      </p>
     </dd>

    
    
     <dt id="eventconfig.constants.feature-o1">
      <strong><code>EventConfig::FEATURE_O1</code></strong>
     </dt>

     <dd>

      <p class="para">
       Requires a backend method where adding or deleting a single event, or
       having a single event become active, is an O(1) operation.
      </p>
     </dd>

    
    
     <dt id="eventconfig.constants.feature-fds">
      <strong><code>EventConfig::FEATURE_FDS</code></strong>
     </dt>

     <dd>

      <p class="para">
       Requires a backend method that can support arbitrary file descriptor
       types, and not just sockets.
      </p>
     </dd>

    
   </dl>

  </div>

 </div>

 





















<h2>Table of Contents</h2><ul class="chunklist chunklist_reference"><li><a href="eventconfig.avoidmethod.html">EventConfig::avoidMethod</a> — Tells libevent to avoid specific event method</li><li><a href="eventconfig.construct.html">EventConfig::__construct</a> — Constructs EventConfig object</li><li><a href="eventconfig.requirefeatures.html">EventConfig::requireFeatures</a> — Enters a required event method feature that the application demands</li><li><a href="eventconfig.setmaxdispatchinterval.html">EventConfig::setMaxDispatchInterval</a> — Prevents priority inversion</li></ul>
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